Histopathology and clinical outcome of DTFL. (A) Histopathological features of DTFL. Hematoxylin and eosin staining (H&E) of a representative case (#K17), and immunohistochemical staining for BCL2, CD20, CD10, and Ki67. (B) Kaplan-Meier curves for overall survival of DTFL, LSTFL, and ASTFL cohorts.